Bronzing-machine.



C. M. MULLER.

BRONZING MACHINE.

APPLICATION FILED 0512.8. 1914.

1,171,627. Patented 1161.151916.

2 SHEETS-SHEET 1.

ik E@ w @test y Inventor:

' b @0A/Lw WVM mia/L THE COLUMBIA FLAIOGRAPH C0., WASHINGTON, D. c.

C. M. MULLER.

BRONZING MACHINE.

APPucATxoN min No.8. 1914.

1,171,627. Peeented Feb.15,1916.

Inventor:

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tnviTED sTaTEs PATENT orricE.

CHARLES MULLER, OIE" NEW YORK, Y.

B'RoNzlING-MACEINE.

vSpecification ofrLetters Patent. Patente/(1F61). 15,

Application filed December 8, 1914. Serial No. 876,019.

for distributing or spreading bronze or gold dust on paper or otherfabric on which pictures or other designs have been first printed orotherwise impressed.

For simplicity I will confine the description of my invention to thebronzing of prints on paper. Heretofore this has been accomplished byblowing the gold dust on the print or by machines with revolving disks,both of which are wasteful of the gold dust.

The object of the present invention is to effect an even distribution ofthe gold dust and in an economical manner. And with this and otherobjects in view, which will more fully appear asthe nature of theinvention is better understood, the same consists in the combination,arrangement and construction of parts hereinafter fully described,pointed out in the appended claims and illustrated in the accompanyingdrawings, it being understood that many changes may be made in the size,proportion and number of the several parts and minor details ofconstruction within the scope of the appended claims wit-hout departingfrom the spirit or sacrificing any of the advantages of the invention.

In the accompanying drawings Figure l is a side elevation. Fig. 2 is aplan view of the same. Fig.V Sis a detail perspective view of one of thewipers and actuating mechanism. line of Fig. 2.

. represents a platform supporting the mechanism. B a platen on which islaid the paper with the print to be bronzed. C driving racks, secured totheplaten, cooperating with cog wheel I) of the train of gears D, E fordriving the mechanism. Cog E is mounted on the end of horizontal shaft Fcarrying beveled cogs Gr meshing with similar cogs H mounted on thevertical shafts I supported by bracket K, the shafts I in turn revolvingthe brushes or wipers J. These brushes consist of two parts an upper jand lower y" held apart Fig. el is a cross-section on the and madeadjustable to various thicknesses of thematerial operated on by springsjg. The .bottom of the lower part y" is covered with yfelt or othersuitable material for spreading the gold dust and properly rubbing itin. The cog'Dand shaft F are journaled in bracket L. At the forward endof the machine is located a drum M which contains the gold dust. Thisdrum is mounted on shaft Npjournaled in brackets N secured to platformA. A. shield O prevents gold dust being perchance thrown on l theplatformprl instead of onto the paper on the platen. The drum M isrevolved by the train of lgears P. P. actuated by the i. rack C. lLongitudinally of the drum M are a plurality of screened openings .Qthrough Y which the gold dust is sprinkled. These openings areconstructed so that one or more may be coveredv when it is desirable touse less gold dust than would be deposited if all were-operating. Anyone of .a number of simple devices may be employed, such as slotson'either side of the opening for holding a slide inserted therein. vThedrum is provided vwith a port R for filling.

The device mav be operatedv in rtwo ways-either the machine may be movedforward and back, or the platenwith the paper may move and the ,machineremain stationary. It is therefore adapted for use in connection withprinting presses for treat-ing paper as it comes off the tail of thepress.

As the mechanism is operated in either of the ways mentioned, it will beseenV that gold dust is sprinkled thoroughly on the paper rubbed in bythe first rows of wipers and any surplus brushed ofi' by the followingrows of wipers.

I consider the form of the wipers an important feature of the invention.Awiper consists, as shown, of a plurality of wings and they lare solocated one to its neighbor in the same line that the wines of oneinterlit with those of its neighbor on ,each side. By this intertittingconstruction, the

entire surface is thoroughly covered by each Y row of wipers, and thegold. dust evenly distributed over the subject under treatment by onerow after another until the operation of bronzing is complete and-thefinal row of wipers will brush ofi:l any surplus dust.

It is quite clear that I am not restricted particularly l 2. In anorganization for applying bronze to fabrics, a movable platform havingmounted thereon a revoluble dust drum provided With screened openingsfor sprinkling the bronze onto the fabric, and one or more f series ofrevoluble intertting adjustable l Wipers,V and a platen for holding thefabric under treatment, the same being provided with racks meshing withgears to actuate the dust drum and Wipers when the platform is movedalongl the platen, or vice:

versa.

CHARLES M. MULLER.` vWitnesses: l

HARRY FRANK, ARMAND BOFFA.

V('opies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents.

` Washington, D. C.

